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Mechanical properties and numerical simulation of FDM 3D printed PETG/carbon composite unit structures

Authors :
Ibrahim M. Alarifi
Source :
Journal of Materials Research and Technology, Vol 23, Iss , Pp 656-669 (2023)
Publication Year :
2023
Publisher :
Elsevier, 2023.

Abstract

Carbon fibers (CFs) were used as reinforcement in developing a polyethylene terephthalate glycol (PETG)-based polymer composite using the fused deposition modeling (FDM) 3D printing technique. The influence of CF and process factors (infill percentage, layer thickness, infill pattern) were studied by measuring the prepared polymer composite's tensile, flexural, and compressive properties. The innovative work that was carried out for this study and the tests that were performed revealed that it is difficult to predict the position of the specimen break area before a test. The PETG-reinforced polymer only showed enhanced flexural and tensile strength at a layer thickness of 0.25 mm and a maximum infill percentage of 20% for a solid structural design. Compressive strength improved in reinforced PETG hexagonal and circle structures. The confirmation of the numerical modeling applied to determine the mechanical properties of PETG for FDM additive manufacturing is one of the goals suggested in this research, along with a comparison of experimental and computational data. Scanning electron microscopy examination of the fractured sample surfaces revealed various fracture mechanisms and morphologies for the materials tested. The research found that the 3D-printed composite could further expand the application of PETG as an engineering material.

Details

Language :
English
ISSN :
22387854
Volume :
23
Issue :
656-669
Database :
Directory of Open Access Journals
Journal :
Journal of Materials Research and Technology
Publication Type :
Academic Journal
Accession number :
edsdoj.6fd2b4aa4f1946499b71925faba5f191
Document Type :
article
Full Text :
https://doi.org/10.1016/j.jmrt.2023.01.043